Finding the Fourth Proportional to 125,338.08, 172,966.80 and 68,749.92
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Solution
The fourth proportional to 125,338.08, 172,966.80 and 68,749.92 is: 94,875.03
Step by Step Solution
- Step 1: Write the proportion equation
125,338.08 : 172,966.80 = 68,749.92 : x - Step 2: Convert to fraction form
125,338.08/172,966.80 = 68,749.92/x - Step 3: Cross multiply
125,338.08x = 172,966.80 × 68,749.92 - Step 4: Simplify right side
125,338.08x = 11,891,453,662.66 - Step 5: Solve for x
x = 11,891,453,662.66/125,338.08 - Step 6: Final answer
x = 94,875.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.